Thaum peb tham txog qhov loj ntawm tus txha caj qaum, peb feem ntau tsuas yog tsom rau lawv txoj kab uas hla thiab ntev. Txawm li cas los xij, qhov tseeb txiav txim siab seb tus txha caj qaum puas ua tau zoo hauv cov chaw kho mob yog qhov tsis pom cov ntaub ntawv tshawb fawb thiab cov txheej txheem raug tsim tom qab nws. Cov xwm txheej no sib koom ua ke txiav txim siab qhov ntse, yoog raws, kev xav ntawm rab koob, thiab qhov kawg ntawm kev soj ntsuam.

Stainless hlau: Lub hauv paus ntawm Classic Tsim

Cov khoom tseem ceeb ntawm cov koob txha caj qaum feem ntau yog kev kho mob -qib 304 lossis 316L stainless hlau. Cov khoom no muaj kev tiv thaiv corrosion zoo heev, lub zog zoo, thiab tus nqi nruab nrab. Txawm li cas los xij, stainless hlau tsis zoo tag nrho. Nws lub siab elastic modulus txhais tau hais tias nws yog ib qho nyuaj thiab nyuaj rau lub caij nplooj ntoos hlav rov qab tom qab khoov. Qhov no yog ib qho kev sib tw rau cov kev qhia tshwj xeeb zoo (xws li 27G) cov koob txha caj qaum - thaum ntsib cov pob txha cuam tshuam thaum lub sij hawm puncture txheej txheem, lub cev rab koob yog nquag deformation mus tas li.

Nickel-Titanium Alloy: Tuaj txog ntawm Lub Sijhawm Yooj Yim

Nyob rau hauv xyoo tas los no, nitinol alloy tau pib siv nyob rau hauv siab -kawg spinal koob. Cov duab nco alloy no muaj cov khoom zoo elastic thiab tuaj yeem tiv taus cov kaum sab xis loj dua yam tsis muaj cov yas deformation. Qhov no txhais tau hais tias txawm tias nyob rau hauv cov teeb meem ntawm cov txheej txheem anatomical complex los yog qhov chaw ntawm tus neeg mob tsis zoo, koob nitinol tuaj yeem tswj cov kev taw qhia ntawm rab koob, yog li txhim kho qhov kev ua tiav ntawm kev sib tsoo.

Lwm qhov zoo dua ntawm nickel{0}}titanium alloys yog lawv MRI zoo dua. Nrog rau kev txhim kho ntawm kev cuam tshuam sib nqus resonance, qhov kev thov rau cov khoom siv kho mob tsis yog -ferromagnetic yog nce ib hnub dhau ib hnub. Qhov tsis tshua muaj kev sib nqus ntawm cov npib tsib xee-titanium alloys ua rau nws yuav luag tsis yooj yim rau lawv los tsim cov khoom qub thaum MRI- taw qhia kev ua haujlwm, tsim cov xwm txheej rau qhov tseeb.

Pointed Needle Geometry: Daim duab ntawm Txiav

Cov duab ntawm rab koob yog qhov kev xav tau tshaj plaws hauv kev tsim cov koob txha caj qaum. Cov tsoos beveled taub yuav tsum tau ntau yam sib tsoo txheej txheem los tsim ib tug ntse inclined nto. Lub kaum sab xis ntawm qhov chaw inclined no (feem ntau yog 15℃- 30℃) ncaj qha cuam tshuam rau kev sib tsoo tsis kam thiab qib ntawm cov ntaub so ntswg puas. Qhov me dua lub kaum sab xis, qhov kev siv zog tsawg dua yog xav tau rau qhov puncture, tab sis qhov pom tseeb dua qhov txiav ntawm dura mater yuav yog.

Kev tsim cov cwj mem -point style koob taub yog qhov nyuaj dua. Nws yuav tsum tau machining ib tug blunt conical ntsis ntawm lub stainless hlau koob raj thiab tsim ib lub qhov rau sab. Txoj hauj lwm, qhov loj me, thiab cov duab ntawm lub qhov sab no yog txhua yam raug xam los xyuas kom meej tias cov kua cerebrospinal ntws zoo thaum tiv thaiv cov ntaub so ntswg los ntawm kev thaiv nws. Cov chaw tsim khoom lag luam tseem tuaj yeem siv cov txheej txheem lubricating tshwj xeeb (xws li cov roj silicone lossis PTFE) ntawm lub taub hau kom txo qis kev sib txhuam thaum lub sijhawm ua haujlwm.

Pem hauv ntej Polishing: Ib qho kev saib tsis pom tab sis tseem ceeb heev

Ntau tus neeg saib xyuas qhov tseeb tias qhov zoo ntawm cov phab ntsa sab hauv ntawm tus txha caj qaum yog qhov tseem ceeb sib npaug. Ib lub phab ntsa ntxhib yuav ua rau kom cov kua dej ntws tawm, ua rau cov kua cerebrospinal rov qab qeeb dua thiab tseem ua rau cov qe ntshav sib sau ua ke hauv cov koob raj. Siab -cov koob zoo ntawm tus txha caj qaum tau txais kev kho electrolytic polishing kom cov phab ntsa sab hauv mus txog daim iav- zoo li qib. Qhov no tsis tsuas yog optimizes cov dej dynamics kev ua tau zoo tab sis kuj txo qhov kev pheej hmoo ntawm thrombosis.

Kev taw qhia ntawm lub neej yav tom ntej

Saib mus rau yav tom ntej, kev tsim tshuab ntawm cov koob txha caj qaum yuav txuas ntxiv mus. Nanocoating thev naus laus zis tuaj yeem tso cov koob taub nrog cov tshuaj tua kab mob, txo qhov kev pheej hmoo ntawm kev kis kab mob cuam tshuam nrog kev sib tsoo. Micro-electromechanical systems (MEMS) thev naus laus zis yuav tsum ua ke nrog cov ntsuas ntsuas me me ntawm lub taub hau, ua kom muaj tseeb- lub sijhawm tawm tswv yim thaum lub sijhawm ua haujlwm. Thiab txoj kev loj hlob ntawm 3D tshuab luam ntawv yuav muaj ib hnub tso cai rau cov kws kho mob los kho tus kheej tus txha nraub qaum koob raws li cov qauv anatomical tshwj xeeb ntawm tus neeg mob.

Hauv cov ntsiab lus, txawm hais tias tus txha caj qaum yog me me, nws embodies cov kev txawj ntse ntawm cov ntaub ntawv science, mechanical engineering, thiab cov tshuaj kho mob. Nws yog cov kev ua haujlwm tsis pom zoo uas tau ua rau tus kws kho mob los daws cov txheej txheem yooj yim. Lub sijhawm tom ntej tus kws kho mob khaws ib rab koob txha caj qaum, qhov uas nws tuav hauv nws txhais tes tsis yog lub raj hlau xwb; nws yog lub crystallization ntawm ntau pua xyoo ntawm industrial civilization.